Snorkel mask



FIG. 1 is a perspective view of a snorkel mask showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines depict portions of the snorkel mask that form no part of the claimed design. 

CLAIM The ornamental design for snorkel mask, as shown and described. 